@article{RCM_2001_35_1_a2,
     author = {TARAS RADUL},
     title = {Categorical properties of iterated power},
     journal = {Revista colombiana de matematicas},
     pages = {13--19},
     publisher = {mathdoc},
     volume = {35},
     number = {1},
     year = {2001},
     url = {http://geodesic.mathdoc.fr/item/RCM_2001_35_1_a2/}
}